Senior Software Engineer (.NET) / Architect

Grange Insurance Association has been providing trusted insurance solutions for over 130 years and is now focused on modernizing its technology platforms. The role involves leading the transformation of legacy systems to .NET Core and C#, architecting next-generation platforms, and providing technical leadership to development staff.

Responsibilities:

• Lead the modernization of legacy systems by migrating applications to .NET Core and C#
• Architect and develop next-generation web and application platforms that support business growth and long-term maintainability
• Design and implement RESTful APIs, establishing standards and practices that support modular and scalable architectures
• Provide technical leadership and mentorship to development staff, ensuring high-quality code and best practices are consistently applied
• Collaborate with IT and business stakeholders to align technical roadmaps with organizational objectives
• Evaluate and recommend emerging tools, frameworks, and design approaches to support scalability, performance, and resilience
• Ensure that all solutions meet security, compliance, and performance standards

Requirements:

• The successful candidate must be located in and able to commute to our Seattle office for required hybrid work. Current residence in the Greater Seattle area is a prerequisite for application
• 7+ years of hands-on experience with C# and .NET Core/.NET Framework
• Demonstrated success migrating legacy applications to modern Microsoft platforms
• Proficiency with SQL Server and the Microsoft technology ecosystem
• 5+ years of strong experience in designing and delivering RESTful APIs
• Knowledge of modern architectural patterns such as layered architectures and microservices
• Hands-on experience with version control systems (Git), CI/CD pipelines, and automated testing practices
• Ability to balance technical leadership with hands-on coding responsibilities
• Strong analytical, problem-solving, and communication skills
• Experience with cloud platforms (Azure preferred) and cloud-native architectures
• Familiarity with containerization technologies such as Docker and Kubernetes
• Understanding of DevOps methodologies and modern deployment pipelines
• Experience with using AI tools to assist with development, code generation, debugging, and documentation tasks